feat(wizard): add all wizard step components

- DatesStep: date range selection with duration indicator
- RegionsStep: geographic region selection
- RoutePreferenceStep: direct/scenic/balanced preference
- RepeatCitiesStep: unique vs repeat city visits
- MustStopsStep: optional must-stop locations
- ReviewStep: summary and plan button

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

SportsTime/Features/Trip/Views/Wizard/Steps/RepeatCitiesStep.swift

@@ -0,0 +1,98 @@
+//
+//  RepeatCitiesStep.swift
+//  SportsTime
+//
+//  Step 6 of the trip wizard - allow repeat city visits.
+//
+
+import SwiftUI
+
+struct RepeatCitiesStep: View {
+    @Environment(\.colorScheme) private var colorScheme
+    @Binding var allowRepeatCities: Bool
+    @Binding var hasSetRepeatCities: Bool
+
+    var body: some View {
+        VStack(alignment: .leading, spacing: Theme.Spacing.md) {
+            StepHeader(
+                title: "Visit cities more than once?",
+                subtitle: "Some trips work better with return visits"
+            )
+
+            HStack(spacing: Theme.Spacing.md) {
+                OptionButton(
+                    title: "No, unique cities only",
+                    icon: "arrow.right",
+                    isSelected: hasSetRepeatCities && !allowRepeatCities,
+                    onTap: {
+                        allowRepeatCities = false
+                        hasSetRepeatCities = true
+                    }
+                )
+
+                OptionButton(
+                    title: "Yes, allow repeats",
+                    icon: "arrow.triangle.2.circlepath",
+                    isSelected: hasSetRepeatCities && allowRepeatCities,
+                    onTap: {
+                        allowRepeatCities = true
+                        hasSetRepeatCities = true
+                    }
+                )
+            }
+        }
+        .padding(Theme.Spacing.lg)
+        .background(Theme.cardBackground(colorScheme))
+        .clipShape(RoundedRectangle(cornerRadius: Theme.CornerRadius.large))
+        .overlay {
+            RoundedRectangle(cornerRadius: Theme.CornerRadius.large)
+                .stroke(Theme.surfaceGlow(colorScheme), lineWidth: 1)
+        }
+    }
+}
+
+// MARK: - Option Button
+
+private struct OptionButton: View {
+    @Environment(\.colorScheme) private var colorScheme
+    let title: String
+    let icon: String
+    let isSelected: Bool
+    let onTap: () -> Void
+
+    var body: some View {
+        Button(action: onTap) {
+            VStack(spacing: Theme.Spacing.sm) {
+                Image(systemName: icon)
+                    .font(.title2)
+                    .foregroundStyle(isSelected ? Theme.warmOrange : Theme.textSecondary(colorScheme))
+
+                Text(title)
+                    .font(.caption)
+                    .fontWeight(.medium)
+                    .foregroundStyle(isSelected ? Theme.warmOrange : Theme.textPrimary(colorScheme))
+                    .multilineTextAlignment(.center)
+            }
+            .frame(maxWidth: .infinity)
+            .padding(Theme.Spacing.md)
+            .background(isSelected ? Theme.warmOrange.opacity(0.1) : Color.clear)
+            .clipShape(RoundedRectangle(cornerRadius: Theme.CornerRadius.medium))
+            .overlay(
+                RoundedRectangle(cornerRadius: Theme.CornerRadius.medium)
+                    .stroke(isSelected ? Theme.warmOrange : Theme.textMuted(colorScheme).opacity(0.3), lineWidth: isSelected ? 2 : 1)
+            )
+        }
+        .buttonStyle(.plain)
+    }
+}
+
+// MARK: - Preview
+
+#Preview {
+    RepeatCitiesStep(
+        allowRepeatCities: .constant(false),
+        hasSetRepeatCities: .constant(true)
+    )
+    .padding()
+    .themedBackground()
+}